fix(server): authorizer as oauth provider

server/constants/oauth2.go

@@ -0,0 +1,17 @@
+package constants
+
+const (
+	// - query: for Authorization Code grant. 302 Found triggers redirect.
+	ResponseModeQuery = "query"
+	// - fragment: for Implicit grant. 302 Found triggers redirect.
+	ResponseModeFragment = "fragment"
+	// - form_post: 200 OK with response parameters embedded in an HTML form as hidden parameters.
+	ResponseModeFormPost = "form_post"
+	// - web_message: For Silent Authentication. Uses HTML5 web messaging.
+	ResponseModeWebMessage = "web_message"
+
+	// For the Authorization Code grant, use response_type=code to include the authorization code.
+	ResponseTypeCode = "code"
+	// For the Implicit grant, use response_type=token to include an access token.
+	ResponseTypeToken = "token"
+)